Decline of fishing in Lake Tanganyika ‘due to warming’

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An influx of refugees in the 1990s has increased fishing pressures on the lake

New research blames rising temperatures over the last century as the key cause of decline in one of the world’s most important fisheries.

Lake Tanganyika is Africa’s oldest lake and its fish are a critical part of the diet of neighbouring countries.

But catches have declined markedly in recent decades as commercial fleets have expanded.

However this new study says that climate warming and not overfishing is the real cause of the problem.

Diversity hotspot

Estimated to be the world’s second-largest freshwater lake, Tanganyika is an important resource for the countries that border it: Burundi, the Democratic Republic of Congo, Tanzania and Zambia.

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